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| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I Exam |
| Exam Number: | JS-Dev-101 / JavaScript-Developer-I |
| Related Certifications: | Salesforce Certified Platform Developer I Salesforce Certified Lightning Web Components Specialist |
| Certificate Validity Period: | No expiration; requires regular maintenance via Trailhead modules |
| Exam Price: | USD 200 (+ applicable taxes) |
| Real Exam Qty: | 60 scored + up to 5 unscored |
| Exam Duration: | 105 minutes |
| Passing Score: | 65% |
| Exam Format: | Multiple-select, Multiple-choice |
| Available Languages: | English, Japanese |
| Recommended Training: | Salesforce JavaScript Developer I Certification Prep |
| Exam Registration: | Salesforce Certification Registration |
| Sample Questions: | Salesforce JavaScript-Developer-I Sample Questions |
| Exam Way: | Online proctored or onsite at authorized testing centers |
| Pre Condition: | No formal prerequisites; 1–2 years of JavaScript development experience recommended |
| Official Syllabus URL: | https://trailhead.salesforce.com/credentials/javascript-developer-i |
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Salesforce JavaScript-Developer-I Exam covers various topics, including JavaScript, Lightning Web Components, Apex, and Visualforce. JavaScript-Developer-I exam evaluates the candidate's ability to create custom applications on the Salesforce platform using JavaScript, build custom user interfaces using Lightning Web Components, and integrate Salesforce with external systems using Apex and Visualforce. JavaScript-Developer-I Exam also assesses the candidate's understanding of Salesforce development best practices and their ability to troubleshoot common issues that may arise during the development process.
NEW QUESTION # 126
In the browser, the window object is often used to assign variables that require the broadest scope in an application Node.js application does not have access to the window object by default.
Which two methods are used to address this ?
Choose 2 answers
Answer: A
NEW QUESTION # 127
A developer is leading the creation of a new web server for their team that will fulfill API requests from an existing client.
The team wants a web server that runs on Node.Js, and they want to use thenew web framework Minimalist.Js.
The lead developer wants to advocate for a more seasoned back-end framework that already has a community around it.
Which two frameworks could the lead developer advocate for?
Choose 2 answers
Answer: A,C
NEW QUESTION # 128
Refer to the code below:
What is the value of foobDienu1 after the code executes?
Answer: B
NEW QUESTION # 129
A developer is working on an ecommerce website where the delivery date is dynamically calculated based on the current dat. The code line below is responsible for this calculation.
Const deliveryDate = new Date ( );
Due to changes in the business requirements, the delivery date must now be today's date + 9 days.
Which code meets this new requirements?
Answer: D
NEW QUESTION # 130
Considering type coercion, what does the following expression evaluate to?
true + ' 13 ' + NaN
Answer: B
Explanation:
Expression:
true + ' 13 ' + NaN
The + operator is left-associative, so evaluation order:
* true + ' 13 '
* When one operand is a string, + performs string concatenation.
* true is converted to string ' true ' .
* ' true ' + ' 13 ' # ' true13 ' .
* Result from step 1 with NaN:
' true13 ' + NaN
* Again, one operand is a string, so concatenation.
* NaN is converted to string ' NaN ' .
* ' true13 ' + ' NaN ' # ' true13NaN ' .
Final value: ' true13NaN ' .
So A is correct.
Why others are wrong:
* B: ' 113NaN ' would require true to coerce to 1 first and no string to be present, which is not the case because ' 13 ' forces string concatenation.
* C: 14 would require pure numeric addition, which is not the case once a string is involved.
* D: ' true13 ' ignores the final + NaN part.
Concepts: type coercion with +, boolean to string, NaN to string, left-associative evaluation.
NEW QUESTION # 131
......
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